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[Indic] Categorize Ra in scripts that have Reph 

Is the categorization correct?  I don't know.
This commit is contained in:
Behdad Esfahbod 2011-07-30 19:04:02 -04:00
parent 45d6f29f15
commit 352372ae5e
1 changed files with 30 additions and 1 deletions
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31
src/hb-ot-shape-complex-indic.cc
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@ -234,6 +234,23 @@ static const struct consonant_position_t {
{0x0D35, POS_POST},
};
/* XXX
* This is a hack for now. We should move this data into the main Indic table.
*/
static const hb_codepoint_t ra_chars[] = {
0x0930, /* Devanagari */
0x09B0, /* Bengali */
0x09F0, /* Bengali */
0x09F1, /* Bengali */
//0x0A30, /* Gurmukhi */
0x0AB0, /* Gujarati */
0x0B30, /* Oriya */
//0x0BB0, /* Tamil */
//0x0C30, /* Telugu */
0x0CB0, /* Kannada */
//0x0D30, /* Malayalam */
};
static int
compare_codepoint (const void *pa, const void *pb)
{
@ -256,6 +273,15 @@ consonant_position (hb_codepoint_t u)
return record ? record->position : POS_BASE;
}
static bool
is_ra (hb_codepoint_t u)
{
return !!bsearch (&u, ra_chars,
ARRAY_LENGTH (ra_chars),
sizeof (ra_chars[0]),
compare_codepoint);
}
static const struct {
hb_tag_t tag;
@ -358,8 +384,11 @@ _hb_ot_shape_complex_setup_masks_indic (hb_ot_map_t *map, hb_buffer_t *buffer)
buffer->info[i].indic_category() = type & 0x0F;
buffer->info[i].indic_position() = type >> 4;
if (buffer->info[i].indic_category() == OT_C)
if (buffer->info[i].indic_category() == OT_C) {
buffer->info[i].indic_position() = consonant_position (buffer->info[i].codepoint);
if (is_ra (buffer->info[i].codepoint))
buffer->info[i].indic_category() = OT_Ra;
}
}
}